JP3135745B2 - Discharge control device for small diameter pipe propulsion machine - Google Patents
Discharge control device for small diameter pipe propulsion machineInfo
- Publication number
- JP3135745B2 JP3135745B2 JP05135205A JP13520593A JP3135745B2 JP 3135745 B2 JP3135745 B2 JP 3135745B2 JP 05135205 A JP05135205 A JP 05135205A JP 13520593 A JP13520593 A JP 13520593A JP 3135745 B2 JP3135745 B2 JP 3135745B2
- Authority
- JP
- Japan
- Prior art keywords
- diameter pipe
- small
- pressure
- earth
- control valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004576 sand Substances 0.000 claims description 24
- 239000002689 soil Substances 0.000 description 9
- 238000007599 discharging Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000009412 basement excavation Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/003—Drilling with mechanical conveying means
- E21B7/005—Drilling with mechanical conveying means with helical conveying means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
- E21B7/201—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/108—Remote control specially adapted for machines for driving tunnels or galleries
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】この発明は小口径管を地中へ埋設
する小口径管推進機の排土制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge control device for a small-diameter pipe propulsion machine in which a small-diameter pipe is buried underground.
【０００２】[0002]
【従来の技術】従来小口径管を地中へ埋設する小口径管
推進機は、発進立坑内に推進装置が設置されていて、こ
の推進装置により先端に先導管の装着された小口径管を
地中へ推進させて、小口径管の埋設を行うようになって
いる。2. Description of the Related Art Conventionally, a small-diameter pipe propulsion device in which a small-diameter pipe is buried in the ground has a propulsion device installed in a starting shaft, and the propulsion device allows a small-diameter pipe having a tip pipe attached to a tip thereof. It is designed to be buried underground to bury small-diameter pipes.
【０００３】また先導管の先端には、カッタヘッドが設
けられていて、このカッタヘッドが掘削した土砂はスク
リュウコンベヤにより発進立坑内へ排出されるようにな
っており、先導管内のスクリュウコンベヤには、制御弁
が設けられていて、発進立坑内に排出される土砂の状況
を見ながらこの制御弁を開閉することにより、排土量を
調整している。[0003] Further, a cutter head is provided at the tip of the leading pipe, and the earth and sand excavated by the cutter head is discharged into a starting shaft by a screw conveyor. A control valve is provided, and the amount of soil removed is adjusted by opening and closing the control valve while observing the condition of the earth and sand discharged into the starting shaft.
【０００４】[0004]
【発明が解決しようとする課題】しかし上記従来の小口
径管推進機のように、発進立坑内に排出される排土状況
を見ながら制御弁を調整する方法では、先導管から発進
立坑までの距離が長い場合、掘削状態が発進立坑内に排
土状況として現れるまでに時間遅れがあるため、掘削土
質が急に変化したような場合、土砂の取込み過多により
先導管の方向制御不良や地盤沈下が発生したり、取込み
過少により掘削効率が低下するなどの不具合があった。
この発明はかかる不具合を改善するためになされたもの
で、常に最適な量の土砂が取込まれるようにした小口径
管推進機の排土制御装置を提供することを目的とするも
のである。However, in the method of adjusting the control valve while observing the discharging condition discharged into the starting shaft as in the above-mentioned conventional small-diameter pipe propulsion machine, the method from the leading pipe to the starting shaft is not sufficient. At long distances, there is a time delay before the excavation state appears in the starting shaft as the unloading situation.If the excavated soil quality changes suddenly, excessive intake of sediment causes poor directional control of the front pipe and land subsidence. And excavation efficiency decreased due to insufficient intake.
SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the invention is to provide a discharge control device for a small-diameter pipe propulsion device in which an optimum amount of earth and sand is always taken in.
【０００５】[0005]
【課題を解決するための手段】この発明は上記目的を達
成するために、先端に先導管の装着された小口径管を、
発進立坑内に設置された推進装置により地中へ推進さ
せ、また先導管の先端に設けられたカッタヘッドが掘削
した土砂を小口径管内に設けたスクリュウコンベヤによ
り発進立坑側へ搬送するようにした小口径管推進機にお
いて、先導管内のスクリュウコンベヤに、エア圧により
開閉される制御弁を設け、かつこの制御弁の圧力室内の
圧力を圧力検出器で検出することにより、制御弁より前
方のケーシング内に取込まれた土砂の充満量を検出する
と共に、得られた情報を基にスクリュウコンベヤの回転
を制御するようにしたものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a small-diameter pipe having a leading conduit attached to a tip thereof.
The propulsion device installed in the starting shaft propelled the ground, and the cutter head installed at the tip of the leading pipe carried the excavated earth and sand to the starting shaft by the screw conveyor installed in the small-diameter pipe. In a small-diameter pipe propulsion device, a screw conveyor in a leading conduit is provided with a control valve that is opened and closed by air pressure, and the pressure in a pressure chamber of the control valve is detected by a pressure detector. In addition to detecting the amount of earth and sand taken into the inside, the rotation of the screw conveyor is controlled based on the obtained information.
【０００６】[0006]
【作用】上記構成により、制御弁より前方のケーシング
内には、常に一定した量の土砂が充満されるため、取込
み土砂の過大、過少による不具合を解消することができ
る。According to the above construction, the casing in front of the control valve is always filled with a fixed amount of earth and sand, so that problems caused by excessive or insufficient amount of sediment taken in can be eliminated.
【０００７】[0007]
【実施例】この発明の一実施例を図面を参照して詳述す
る。図１は小口径管推進機を示すもので、１は小口径管
２の先端に装着された先導管、３は発進立坑４内に設置
された推進装置で、上記小口径管２を地中へ推進させる
推進ジャッキ５と、小口径管２内に設けられたスクリュ
ウコンベヤ６のスクリュウ軸６ａを回転駆動する駆動装
置７を有している。上記先導管１は先端部にカッタヘッ
ド８が回転自在に支承されている。このカッタヘッド８
はスクリュウコンベヤ６のスクリュウ軸６ａ先端に接続
されていて、駆動装置７によりスクリュウ軸６ａを介し
て回転されるようになっており、前面に回転自在に取付
けられたディスクカッタ９により切羽を掘削するように
構成されている。An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a small-diameter pipe propulsion machine, 1 is a leading pipe attached to the tip of a small-diameter pipe 2, 3 is a propulsion device installed in a starting shaft 4, which underground the small-diameter pipe 2. And a driving device 7 for rotating and driving a screw shaft 6a of a screw conveyor 6 provided in the small-diameter pipe 2. A cutter head 8 is rotatably supported at the tip of the front conduit 1. This cutter head 8
Is connected to the tip of the screw shaft 6a of the screw conveyor 6 and is rotated by the driving device 7 via the screw shaft 6a. The face is excavated by the disk cutter 9 rotatably mounted on the front surface. It is configured as follows.
【０００８】また掘削された土砂は先導管１内のスクリ
ュウコンベヤ６に取込まれた後スクリュウ軸６ａの回転
とともに、ケーシング６ｂ内を後方へ搬送され、発進立
坑４内へ排出されると共に、先導管１内のスクリュウコ
ンベヤ６には、排土量を調整する制御弁１０が設けられ
ている。上記制御弁１０は図２に示すように、エアによ
り膨張、収縮するゴムなどの弾性体よりなる筒状の弁体
１０ａを有していて、この弁体１０ａの外周側に設けら
れた圧力室１０ｂに、エア源１２のエアが調圧弁１３に
より調圧された後、管路１４を介して供給されるように
なっている。The excavated earth and sand is taken into the screw conveyor 6 in the leading pipe 1 and then conveyed rearward in the casing 6b with the rotation of the screw shaft 6a, and discharged into the starting shaft 4, and The screw conveyor 6 in the conduit 1 is provided with a control valve 10 for adjusting the amount of earth removal. As shown in FIG. 2, the control valve 10 has a cylindrical valve body 10a made of an elastic body such as rubber which expands and contracts by air, and a pressure chamber provided on the outer peripheral side of the valve body 10a. After the pressure of the air of the air source 12 is regulated by the pressure regulating valve 13, the air is supplied to the pipe 10 b through the pipe 14.
【０００９】一方スクリュウコンベヤ６のスクリュウ軸
６ａを駆動する駆動装置７は、減速機１５を介してスク
リュウ軸６ａに接続された油圧モータ１６を有してい
て、この油圧モータ１６に、電動機１７により駆動され
る油圧ポンプ１８より電磁弁よりなる操作弁１９を介し
て油圧が供給されるようになっている。上記操作弁１９
のソレノイド信号は演算器２２に入力されている。On the other hand, a driving device 7 for driving the screw shaft 6a of the screw conveyor 6 has a hydraulic motor 16 connected to the screw shaft 6a via a speed reducer 15, and the hydraulic motor 16 is connected to the hydraulic motor 16 by an electric motor 17. A hydraulic pressure is supplied from a driven hydraulic pump 18 via an operation valve 19 formed of an electromagnetic valve. Operation valve 19
Are input to the computing unit 22.
【００１０】上記演算器２２には、制御弁１０へエアを
供給する管路１４の途中に設けられた圧力検出器２３に
より弁室１０ｂ内の圧力が検出されて、電気信号として
入力されていると共に、演算器２２には管路１４内の圧
力Ｐを表示する表示計２４と、スクリュウコンベヤ６の
回転時及び停止時の差圧ΔＰを表示する表示計２５が接
続されている。The pressure in the valve chamber 10b is detected by the pressure detector 23 provided in the pipe 14 for supplying air to the control valve 10 to the arithmetic unit 22, and is input as an electric signal. At the same time, a display 24 for displaying the pressure P in the pipe 14 and a display 25 for displaying the differential pressure ΔP when the screw conveyor 6 is rotating and when stopped are connected to the arithmetic unit 22.
【００１１】次に図３ないし図８を参照して作用を説明
する。いま図６に示すフローチャートのステップ１０１
で、駆動装置７によりスクリュウコンベヤ６及びカッタ
ヘッド８を回転させながら、発進立坑４内の推進装置３
により小口径管２を地中へ推進させる。また制御弁１０
の圧力室１０ｂへ調圧弁１３により調圧された一定圧Ｐ
のエアを供給して、図３に示すように弁体１０ａを膨張
させ、ケーシング６ｂ内へ土砂を充満させる。ケーシン
グ６ｂ内に土砂が充満すると、土砂の一部が弁体１０ａ
を押し開けて後方へ移動しようとするため、弁室１０ｂ
内の圧力Ｐが上昇する。Next, the operation will be described with reference to FIGS. Now, step 101 in the flowchart shown in FIG.
Then, while rotating the screw conveyor 6 and the cutter head 8 by the driving device 7, the propulsion device 3 in the starting shaft 4
The small diameter pipe 2 is propelled into the ground. The control valve 10
Pressure P regulated by the pressure regulating valve 13 into the pressure chamber 10b
Is supplied to expand the valve element 10a as shown in FIG. 3 to fill the casing 6b with earth and sand. When the casing 6b is filled with earth and sand, a part of the earth and sand becomes the valve body 10a.
The valve chamber 10b
The internal pressure P increases.
【００１２】この圧力上昇を圧力検出器２３が検出して
演算器２２へ送ると共に、演算器２２は、設定圧Ｐと上
昇圧の差圧ΔＰをステップ１０２で演算して、得られた
差圧ΔＰによりケーシング６ｂ内の土砂の充満状況を感
知する。そして土砂粒度や被水圧などの土質条件により
予め設定された管理限界幅内となるようにスクリュウコ
ンベヤ６の回転を制御する。This pressure rise is detected by the pressure detector 23 and sent to the calculator 22. The calculator 22 calculates the differential pressure ΔP between the set pressure P and the rising pressure in step 102, and obtains the obtained differential pressure. The state of filling of the earth and sand in the casing 6b is sensed by ΔP. Then, the rotation of the screw conveyor 6 is controlled so as to be within a management limit width which is set in advance according to soil conditions such as soil particle size and water pressure.
【００１３】すなわち図４に示すようにケーシング６ｂ
内に土砂が充満されていない場合は、制御弁１０の弁体
１０ａを押す力は小さく、このため、弁室１０ｂ内の圧
力は設定値Ｐに近い値を示す。この状態では制御弁１０
を閉じてケーシング６ｂ内へ土砂を充満させる。また図
５に示すようにケーシング６ｂ内に土砂が充満される
と、弁体１０ａを押す力が大きくなって弁室１０ｂ内の
圧力が上昇する。That is, as shown in FIG.
When the inside is not filled with earth and sand, the force of pressing the valve body 10a of the control valve 10 is small, and therefore, the pressure in the valve chamber 10b shows a value close to the set value P. In this state, the control valve 10
Is closed to fill the casing 6b with earth and sand. When the casing 6b is filled with earth and sand as shown in FIG. 5, the force pressing the valve body 10a increases, and the pressure in the valve chamber 10b increases.
【００１４】圧力の上昇はケーシング６ｂ内に充満され
た土砂の土質によっても変化するので、予め図８に示す
ような管理限界幅ｈを設定し、差圧ΔＰがこの管理限界
幅ｈ内となるようにスクリュウコンベヤ６の回転を制御
する。Since the rise in pressure varies depending on the soil characteristics of the earth and sand filled in the casing 6b, a control limit width h as shown in FIG. 8 is set in advance, and the differential pressure ΔP falls within the control limit width h. Thus, the rotation of the screw conveyor 6 is controlled.
【００１５】いまステップ１０２で検出した差圧ΔＰが
管理限界の上限Ｐ2 を越えた場合は、ステップ１０３で
油圧ポンプ１８の斜板角度調整による吐出量を制御して
駆動装置３の油圧モータ１６へ供給する油量を減少さ
せ、スクリュウ軸６ａの回転を減速する。また逆に管理
限界の下限Ｐ1 より低い場合は、ステップ１０４でスク
リュウ軸６ａの回転を上げて、差圧ΔＰが常に管理限界
幅ｈ内に入るように制御するもので、これによって掘削
土砂の土質が変化しても、制御弁１０より前方のケーシ
ング６ｂ内には常に一定量の土砂が充満されているよう
になるため、土砂の取込み過多や過少が未然に防止でき
るようになる。また取込み土砂の土質によってケーシン
グ６ｂ内にプラグが形成されにくい場合は、ステップ１
０５で土砂のスランプ値を判定して、スランプ値が高い
場合はステップ１０６で加泥剤の注入量を減らし、スラ
ンプ値が低い場合はステップ１０７で注入量を増やすよ
うにする。[0015] When the differential pressure ΔP detected now step 102 exceeds the upper limit P 2 of control limits, the hydraulic motor 16 by controlling the discharge amount of the swash plate angle adjustment of the hydraulic pump 18 driven device 3 in step 103 To reduce the amount of oil supplied to the screw shaft 6a. In the case lower than the lower limit P 1 of control limits Conversely, by increasing the rotation of the screw shaft 6a at step 104, and controls so that the differential pressure ΔP always fall within the control limit width h, whereby drilling soil Even if the soil quality changes, the casing 6b in front of the control valve 10 is always filled with a certain amount of earth and sand, so that excessive intake or underload of the earth and sand can be prevented beforehand. If plugs are difficult to be formed in the casing 6b due to the soil quality of the taken-in earth and sand, step 1
At 05, the slump value of the earth and sand is determined. If the slump value is high, the injection amount of the humidifier is reduced at step 106, and if the slump value is low, the injection amount is increased at step 107.
【００１６】なお図９に示すように圧力検出器を制御弁
１０の近くに設けることにより、管路１４の途中でエア
漏れが発生しても、この影響を受けることが少ないた
め、精度の高い制御が可能になると共に、調圧弁１３に
サーボモータ２７を接続して、このサーボモータ２７を
制御器２２−１で制御することにより、調圧弁１３の設
定圧を自動的に可変することもできる。また図１０に示
すように、演算器２２により油圧ポンプ１６の吐出量を
制御することにより、スクリュウコンベヤ６の回転速度
を制御するようにしてもよい。By providing the pressure detector near the control valve 10 as shown in FIG. 9, even if air leakage occurs in the middle of the pipe line 14, the influence of the air leakage is small, and therefore, high accuracy is achieved. The control becomes possible, and the servomotor 27 is connected to the pressure regulating valve 13, and the servomotor 27 is controlled by the controller 22-1 so that the set pressure of the pressure regulating valve 13 can be automatically varied. . As shown in FIG. 10, the rotation speed of the screw conveyor 6 may be controlled by controlling the discharge amount of the hydraulic pump 16 by the calculator 22.
【００１７】[0017]
【発明の効果】この発明は以上詳述したように、先導管
内のスクリュウコンベヤに、エア圧により開閉する制御
弁を設けて、この制御弁の圧力室内の圧力により制御弁
より前方のケーシング内に取込まれた土砂の充満度を検
出し、充満度が一定となるようにスクリュウコンベヤの
回転を制御するようにしたことから、掘削中に切羽の土
質が変化しても、土砂の取込み過大や過少が発生するこ
とがない。これによって土砂の取込み過大による先導管
の方向制御不良や地盤沈下などが確実に防止できると共
に、取込み過少による掘削能率の低下も防止することが
できる。また制御弁より前方に土砂のプラグが形成され
るため、噴発などが防止できると共に、制御弁を利用し
て土砂の充満度を検出するようにしたことから、充満度
を検出するための手段を別に設ける必要がないため経済
的である。As described in detail above, the present invention provides a screw conveyor in a leading pipe provided with a control valve that opens and closes by air pressure, and the pressure in the pressure chamber of the control valve causes the control valve to enter a casing in front of the control valve. Detecting the degree of fullness of the sediment taken in and controlling the rotation of the screw conveyor to keep the degree of fullness constant, even if the soil quality of the face changes during excavation, excessive sedimentation There is no shortage. In this way, it is possible to reliably prevent poor control of the direction of the leading pipe and land subsidence due to excessive intake of earth and sand, and also prevent reduction in excavation efficiency due to insufficient intake. Also, since a plug of earth and sand is formed in front of the control valve, it is possible to prevent eruption and the like, and the control valve is used to detect the degree of fullness of the earth and sand. It is economical because there is no need to provide a separate.
【図１】この発明の一実施例になる排土制御装置を採用
した小口径管推進機の構成図である。FIG. 1 is a configuration diagram of a small-diameter pipe propulsion device that employs a discharge control device according to an embodiment of the present invention.
【図２】この発明の一実施例になる小口径管推進機の排
土制御装置を示す構成図である。FIG. 2 is a configuration diagram showing a discharge control device for a small-diameter pipe propulsion device according to an embodiment of the present invention.
【図３】この発明の一実施例になる小口径管推進機の排
土装置の作用を示す説明図である。FIG. 3 is an explanatory view showing the operation of the discharging device of the small-diameter pipe propulsion device according to one embodiment of the present invention.
【図４】この発明の一実施例になる小口径管推進機の排
土装置の作用を示す説明図である。FIG. 4 is an explanatory view showing the operation of the discharging device of the small-diameter pipe propulsion device according to one embodiment of the present invention.
【図５】この発明の一実施例になる小口径管推進機の排
土装置の作用を示す説明図である。FIG. 5 is an explanatory view showing the operation of the discharging device of the small-diameter pipe propulsion device according to one embodiment of the present invention.
【図６】この発明の一実施例になる小口径管推進機の排
土装置の作用を示すフローチャートである。FIG. 6 is a flowchart showing the operation of the discharging apparatus of the small-diameter pipe propulsion device according to one embodiment of the present invention.
【図７】この発明の一実施例になる小口径管推進機の排
土装置の作用を示す線図である。FIG. 7 is a diagram showing the operation of the discharging device of the small-diameter pipe propulsion device according to the embodiment of the present invention.
【図８】この発明の一実施例になる小口径管推進機の排
土装置の作用を示す線図である。FIG. 8 is a diagram showing an operation of the earth discharging device of the small-diameter pipe propulsion device according to one embodiment of the present invention.
【図９】この発明の他の実施例になる小口径管推進機の
排土制御装置を示す構成図である。FIG. 9 is a configuration diagram showing a discharge control device for a small-diameter pipe propulsion device according to another embodiment of the present invention.
【図１０】この発明の他の実施例になる小口径管推進機
の排土制御装置を示す構成図である。FIG. 10 is a configuration diagram showing a discharge control device for a small-diameter pipe propulsion device according to another embodiment of the present invention.
１ 先導管 ２ 小口径管 ３ 推進装置 ４ 発進立坑 ６ スクリュウコンベヤ ６ｂ ケーシング １０ 制御弁 １０ｂ 圧力室 ２３ 圧力検出器 DESCRIPTION OF SYMBOLS 1 Lead pipe 2 Small diameter pipe 3 Propulsion device 4 Starting shaft 6 Screw conveyor 6b Casing 10 Control valve 10b Pressure chamber 23 Pressure detector
Claims (1)
を、発進立坑４内に設置された推進装置３により地中へ
推進させ、また先導管１の先端に設けられたカッタヘッ
ド８が掘削した土砂を小口径管１内に設けたスクリュウ
コンベヤ６により発進立坑４側へ搬送するようにした小
口径管推進機において、先導管１内のスクリュウコンベ
ヤ６に、エア圧により開閉される制御弁１０を設け、か
つこの制御弁１０の圧力室１０ｂ内の圧力を圧力検出器
２３で検出することにより、制御弁１０より前方のケー
シング６ｂ内に取込まれた土砂の充満量を検出すると共
に、得られた情報を基にスクリュウコンベヤ６の回転を
制御することを特徴とする小口径管推進機の排土制御装
置。1. A small-diameter pipe 2 having a tip conduit 1 mounted at a tip thereof.
Is propelled into the ground by the propulsion device 3 installed in the starting shaft 4, and the earth and sand excavated by the cutter head 8 provided at the tip of the leading pipe 1 is screwed by the screw conveyor 6 provided in the small-diameter pipe 1. In a small-diameter pipe propulsion machine that is conveyed to the starting shaft 4 side, a screw conveyor 6 in the leading pipe 1 is provided with a control valve 10 that is opened and closed by air pressure, and a control valve 10 in the pressure chamber 10 b of the control valve 10. By detecting the pressure with the pressure detector 23, the filling amount of the earth and sand taken into the casing 6b in front of the control valve 10 is detected, and the rotation of the screw conveyor 6 is controlled based on the obtained information. An earth removal control device for a small-diameter pipe propulsion machine.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05135205A JP3135745B2 (en) | 1993-05-14 | 1993-05-14 | Discharge control device for small diameter pipe propulsion machine |
| PCT/JP1994/000740 WO1994027028A1 (en) | 1993-05-14 | 1994-05-06 | Earth dumping control device for a small diameter pipe propelling machine |
| EP94914588A EP0699823A4 (en) | 1993-05-14 | 1994-05-06 | Earth dumping control device for a small diameter pipe propelling machine |
| US08/582,999 US5707176A (en) | 1993-05-14 | 1994-05-06 | Earth discharge control system for small-diameter pipe propelling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05135205A JP3135745B2 (en) | 1993-05-14 | 1993-05-14 | Discharge control device for small diameter pipe propulsion machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06323093A JPH06323093A (en) | 1994-11-22 |
| JP3135745B2 true JP3135745B2 (en) | 2001-02-19 |
Family
ID=15146313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05135205A Expired - Fee Related JP3135745B2 (en) | 1993-05-14 | 1993-05-14 | Discharge control device for small diameter pipe propulsion machine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5707176A (en) |
| EP (1) | EP0699823A4 (en) |
| JP (1) | JP3135745B2 (en) |
| WO (1) | WO1994027028A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6083103A (en) * | 1998-02-25 | 2000-07-04 | New Holland North America, Inc. | Sensor apparatus with butterfly valve for maintaining packing density of moving material |
| US6161631A (en) * | 1998-08-04 | 2000-12-19 | Kennedy; James | Environmentally friendly horizontal boring system |
| FR2798420B1 (en) * | 1999-09-15 | 2001-12-14 | Cie Du Sol | DRILLING TOOL WITH TUBING |
| US6887139B2 (en) * | 2000-04-17 | 2005-05-03 | Basil G. Jennette | Sander blocks for minisaws |
| DK1357252T3 (en) * | 2002-04-15 | 2006-05-15 | Koninkl Kpn Nv | Method and apparatus for installing a duct around an existing longitudinal element |
| DE102007002399B4 (en) * | 2007-01-10 | 2012-06-21 | Bhg Brechtel Gmbh | Method and device for producing a cased continuous bore |
| CA2609018A1 (en) * | 2007-09-28 | 2009-03-28 | Stephane Labelle | Systeme permettant de mieux exploiter la geothermie haute temperature |
| US8066074B2 (en) * | 2008-11-18 | 2011-11-29 | Chevron U.S.A. Inc. | Systems and methods for mitigating annular pressure buildup in an oil or gas well |
| KR100952916B1 (en) * | 2009-09-03 | 2010-04-16 | 주식회사 송현이엔씨 | Air injecting shield machine |
| CN104329094B (en) * | 2014-10-13 | 2016-09-21 | 韶关市铁友建设机械有限公司 | A kind of construction technology of spiral push-bench |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3917010A (en) * | 1974-07-25 | 1975-11-04 | Jarva Inc | Small diameter horizontal tunneling machine |
| US4506931A (en) * | 1979-01-15 | 1985-03-26 | United States Pipe And Foundry Company | Method and apparatus for mining |
| JPS5985095A (en) * | 1982-11-05 | 1984-05-16 | 三和機材株式会社 | Operation control of embedded pipe propelling apparatus |
| US4487525A (en) * | 1983-08-18 | 1984-12-11 | Kabushiki Kaisha Komatsu Seisakusho | Propulsion pipe laying system |
| US4711310A (en) * | 1985-01-04 | 1987-12-08 | Luen Lam M | Rotary head |
| JPS6211160A (en) * | 1985-07-08 | 1987-01-20 | Fuji Electric Co Ltd | Temperature compensation device of measuring apparatus utilizing immobilized enzyme membrane |
| DE68916636T2 (en) * | 1988-10-05 | 1994-10-27 | Sekisui Chemical Co Ltd | UNDERGROUND PIPE FOR A PITCH DRILLING METHOD AND CONNECTING STRUCTURE OF SUCH A PIPE. |
| JPH0768863B2 (en) * | 1990-04-17 | 1995-07-26 | 飛島建設株式会社 | Leading tubular body for excavating small-diameter pipes and method for advancing small-diameter pipes |
| JPH0465893A (en) * | 1990-07-06 | 1992-03-02 | Furukawa Electric Co Ltd:The | Manufacture of composite circuit board |
| JPH0465893U (en) * | 1990-10-17 | 1992-06-09 | ||
| JPH05133192A (en) * | 1991-11-08 | 1993-05-28 | Hitachi Constr Mach Co Ltd | Excavated soil and sand discharger for small-bore pipe laying device |
| JP2678706B2 (en) * | 1992-06-22 | 1997-11-17 | 株式会社小松製作所 | Excavator control device |
-
1993
- 1993-05-14 JP JP05135205A patent/JP3135745B2/en not_active Expired - Fee Related
-
1994
- 1994-05-06 US US08/582,999 patent/US5707176A/en not_active Expired - Fee Related
- 1994-05-06 EP EP94914588A patent/EP0699823A4/en not_active Withdrawn
- 1994-05-06 WO PCT/JP1994/000740 patent/WO1994027028A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| US5707176A (en) | 1998-01-13 |
| WO1994027028A1 (en) | 1994-11-24 |
| JPH06323093A (en) | 1994-11-22 |
| EP0699823A1 (en) | 1996-03-06 |
| EP0699823A4 (en) | 1998-09-09 |
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| LAPS | Cancellation because of no payment of annual fees |